nuri77Nur77-GFP reporter mice as a useful tool study Nur77 promoter activity during renal IRI. (A) Induction of GFP transcript level mirrored that of Nur77 in the kidney tissues 24 hours after IRI,Nuclear receptor subfamily 4 group A member 1 (NR4A1; also termed Nur77TR3NGFIB), a member of the nuclear receptor superfamily, is expressed as an early response gene to